Saw-filing device.



W. H. UPDEGRAFF.

SAW FILING DEVICE.

APPLICATION FILED DEC. 2, 1911.

Patented Aug. 20, 1912.

4 SHEETS-SHEET 1.

W. H. UPDEGRAFF.

SAW FILING DEVICE.

APPLICATION FILED DEC. 2, 1911.

1,036,167, Patented Aug. 20, 1912.

4 SHEETS-SHEET 2.

W. H. UPDEGRAFF.

SAW FILING DEVICE.

' APPLIGATION TILED DEC. 2, 1911.

Patented Aug. 20, 1912.

4 SHEETSSHEBT 3.

COLUMBIA PLANOGRAPH CO" WASHINGTON. D. M

W. H. UPDEGRAFF.

SAW FILING DEVICE.

APPLICATION FILED 111:0. 2, 1911.

Patented Aug. 20, 1912.

4 SHEETS-SHEET 4.

v Even??? WILLIAM H. UPDEGRAFE OF SAN DIEGO, CALIFORNTA.

SAW-FILING DEvioE.

Application filed December 2, 1911.

To all whom it may concern:

Be it known that 1, WILLIAM H. UPDE- GRAFF, a citizen of the UnitedStates of America, residing at San Diego, in the county of San Diego andState of California, have invented certain new and useful Improvementsin Saw-Filing Devices, of which the following is a specification.

This invention relates to a saw filing machine.

The object of the invention is to provide a machine of this characteradapted to be either hand or power driven, and which when set in motionfeeds the saw along tooth by tooth to the file, and imparts therequisite reciprocatory movement to the file.

It is a further object of the invention to provide a machine adapted toperform the above named functions while permitting the file to be swungat varying angles and to varying inclinations.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows.

In the accompanying drawing Figure 1 is a side elevation of the upperportion of the saw filing machine. Fig. 2 is a like View looking fromthe opposite side of said machine and illustrating the saw carryingcarriage in end elevation. Fig. 3 is an end view looking toward the leftin Fig. 2. Figs. at and 5 are respectively side and end elevations ofthe saw carrying carriage guide. Fig. 6 is a detailed view illustratingthe toothed head of a bracket, as hereinafter described. Figs. 7 and 8are respectively plan and edge views of a locking yoke, hereinafterdescribed. Fig. 9 is an underside View of the upper plate, upon whichthe main operating shaft is mounted. Fig. 10 is a plan View of thestandard upon which the plate shown in Fig. 9 has its mounting. Fig. 11is a detailed side elevation of the saw carriage, hereinafter described.Fig. 12 is a detailed sectional view illustrating the center in whichone end of the file is mounted. Fig. 13 is a detailed end elevationillustrating a pointer used in setting the file to varying positions,and Fig. 1 1 is a detailed plan view of the plate upon which thesawshifting dog is mounted.

Like numerals designate corresponding parts in all of the figures of thedrawing.

Referring to the drawing, the numeral 5 designates a bracket adapted tobe secured to a bench 6, or other support, by means of Specification ofLetters Patent.

Patented Aug. 20, 1912.

Serial No. 663,553.

screws or like fastening devices, 7. An intermediate portion of thebracket has ways 9 formed therein by securing strips 10 to said bracket.In the Ways 9 a saw carrying carriage 11 is mounted for longitudinalmovement, the carriage 11 having secured thereto bars 12, adapted toengage in the ways 9. The carriage 11 is made in the two parts 13 and14, secured together at 15 by rivets or screws. Cams 16 having handleextensions 17, are pivoted between ears 18 of the carriage, and serve tofrictionally bind the saw in said carriage to hold the saw againstaccidental movement. The bracket- 5 is provided with an upstanding neckextension 19, having a serrated face 20 at its upper end, (see Figs. 3and 6). A head block 21 is provided with an extension 22, having aserrated face 23, which coacts with the face 20. A binding screw 24serves to bind these serrated faces into engagement with each other toprevent movement of the block 21, after said block has been moved to anydesired position of angular adjustment. The block 21 has its upper faceradially grooved at 25 for the reception of radial ribs 26 formed uponthe under face of a head plate 27. The block 21 is provided with anupstanding neck 28 terminating in a head 29, and the plate 27 isprovided with an opening 30 through which the head 29 is pass-ed when itis desired to secure these parts together. After these parts have beenbrought into the position illustrated in Fig. 3, a U shaped yoke 31 isplaced in position embracing the neck 28, engaging beneath the head 29and bearing upon the plate 27, whereby the plate 30 is secured upon thehead 21. If desired, the U-shaped yoke 31 may be merely driven inposition, or the yoke may be provided with a cam finger 32, (see Figs. 7and 8), which when brought to the position illustrated in Fig. 8 throwsthe rear end of the yoke upwardly and exerts pressure between theunderside of the head 29 and the upper face of the plate 27. The plate27 carries bearing blocks 33 and 3 1, in which is journaled a main shaft35. This shaft may be provided with a pulley 36 if desired, for thepurpose of imparting motion to said shaft by power. At its opposite endthe shaft 35 is provided with the two offset portions 37 and 38, andwith a crank handle 39. Pivotally engaged with the offset 38, andextending from said offset to a swinging arm 39, is a link 40. The linkhas pivotal engagement at 41 .with the arm 39', which latter arm has apivotal mounting at 42 upon a standard 48, which projects upwardly fromhead plate 27. The head plate 27 carries bearing arms 44, in which rods45 slide vertically. The upper ends of these rods are connected by atiebar 46. Springs 47 bear beneath the underside of the lowermost partof the arms 44 and bearing enlargements 48 of the rods 45. The bearingenlargements 48 and additional hearings or enlargements 49 of the rods45 receive horizontal rods 50, forming portions of a filing frame, therods 50 being slidably disposed in the enlargements 48 and 49.

The file frame comprises the rods 50 and end members 51., to which saidrods are secured. One of the members 51 (see Fig. 1) carries a fixedcenter 52. which serves to receive one end of the file 53. The oppositeend of the file enters a socket (see Fig. 12) of a rotatable center 55,said center being mounted in a sleeve 56 that is carried by one of theend members 51. The center carries a pointer 57 which travels over ascale 58 of plate 59, and the angle of the file is determined by theposition of this pointer, it being understood that. the file is a threecornered one, as illustrated in Fig. 4. It will be apparent that whenrotation is imparted to shaft 35, either by the pulley 36 or handle 39,swinging motion will be imparted to arm 39 through the medium of link40. This will in turn impart rociprocatory movement to the file framethrough the medium of a curved link 60 adapted for pivotal connection at61 with the arm 39 at any of the points 62. The opposite end of the link60 (see Fig. l) is pro vided with recesses 63 adapted for engagementwith the stud 64 projecting from one side of the sleeve 56. By virtue ofthis structure, the throw of the file frame may be varied at will.

It is to be understood that the file is in contact with a tooth untilthe tooth is filed to a predetermined depth. The settling of the fileactuates mechanism for bringing for-- ward another tooth of the saw tobe operated upon. Means are also provided for lifting the file out ofcontact with the tooth upon each rearward movement of the file frame.The means for feeding the saw forward tooth by tooth comprises a lever65 that is pivoted at 66, upon a bearing bracket 67 supported from thehead plate 27. The lever 65 is provided with a nose 68 adapted to beengaged by the end 69 of a latch 70. This latch is pivoted at 71 to abracket 72 carried by plate 27. The-latch is provided with a tail 73that lies in the path of downward movement of an arm 74 carried bytie-rod 46. A set screw 75 limits the downward movement of the tail 7 3.

It will be apparent that as the file cuts into the saw and the groovebetween the 'teeth is deepened, there will be a gradual settling of thefile frame, which, when the file has cut to a predetermined depth, will,through the contact of arm 74 with tail 7 3, throw the end 69 out ofengagement with the nose 68 of lever 65, thereby permitting downwardmovement of said lever. This lever has pivoted to it at 76, a rod 77,which intermediate its ends is provided with a turn-buckle sleeve 78 topermit of adjustment of said rod for use with a fine or coarse saw asthe case may be. The lower end of the rod 77 is secured to one of thearms of a bell-crank lever 7 9, thatis pivoted at 80. The opposite armof the bell-crank lever is connected by a link 81 with the upper end ofa rocking lever 82. This rocking lever is pivoted at 83 upon a bearingplate 84 of bracket 5. A link 85 is adapted to be connected with therocking lever either at 86 or 87, the opposite end of said link beingconnected at 88 to a sliding plate 89 (see Figs. 4 and 14). The slidingplate 89 rests upon a fixed plate 90, and is provided with slots 91 forthe reception of screws 92, which pass through plates 89 and 90, andwhile holding plate 89 upon the plate 90, permits sliding movement ofplate 89 with relation to plate 90. The plate 89 carries a block 93,upon which is pivoted at 94 and 94- a dog 95 and 95 having fish tailends 96. A spring 97 extends between the bracket 19 and the rockinglever 82.

It is apparent that downward movement of therod 77 will rock the bellcrank lever 79 upon its pivot. It is to be understood that the tail endof the dog 95 will thereupon ride over the teeth of the saw a diswardthe distance of two teeth and permits the latch 7i) to again engage thenose 68 of said lever 65, preparatory to again repeating the operationof advancing a saw the distance of two teeth. In case the saw is to befiled all from one side, adjustment of sleeve 78 permits the aboveactions to ad vance the saw only one tooth at a time.

It will. be apparent from an inspection of Fig. '2. that. during thereturn stroke of the file, the offset portion 37 of the shaft willengage the underside of the tie-bar 46 to hold the file frame and thefile in an elevated position and out of contact with the teeth of thesaw, but as the handle 39 is moved to carry the file forward on itsworking stroke, the file frame and file are permitted to descendgradually and contact with the saw. After the saw carrying car-' riagehas reached its limit of movement in one direction, the link 85 is movedto the dotted line position in Fig. 4, and the dog 95 is likewise movedto the dotted line posithis being determined by starting the file at.

the proper tooth to secure such result.

It is apparent that the plate 27 may swing in a horizontal plane uponhead block 21 to bring the file at varying angles,

and that the block 21 with plate 27 has a swinging adjustment by reasonof the structure illustrated at 22, 28 and 24 to permit adjustment ofthe file to varying inclinations. 7

From the foregoing description it will be seen that simple and efficientmeans are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changes as may be madewithin the scope of the appended claims.

Having described my invention, what 1 claim is 1. In a device of thecharacter described, the combination with a saw moving mechanism, a fileframe and a file frame reciprocating member, of a rotative shaft havingthree offset crank portions formed in the length thereof, one of saidportions, during the rotation of the shaft, actuating said saw movingmechanism, another of said offsets contacting with and lifting said fileframe, and the third of said offsets engaging and actuating said fileframe reciprocating member.

2. Ina device of the character described, the combination with a sawcarrying carriage of a file frame disposed substantially transverselywith relation to said carriage, a rotative shaft, means for impartingreciprocatory movement to the file frame from said shaft, verticallymovable guides in which the file frame slides, a member, movement ofwhich serves to impart movement to the saw carrying carriage to bringanother tooth into position to be actedupon by the file, a latchnormally holding said member against such movement and means operableduring the downward movement of the file frame guides to release saidlatch.

3. In a device of the character described, the combination with a sawcarrying carriage of a file frame disposed substantially transverselywith relation to said carriage, a rotative shaft, means for impartingreciprocatory movement to the file frame from said shaft, verticallymovable guides in which the file frame slides, a member, move ment ofwhich serves to impart movement to the saw carrying carriage to bringanother tooth into position to be acted upon by the file, a latchnormally holding said member against such movement, means operableduring the downward movement of the file frame guides to release saidlatch, and means carried by the rotative shaft for restoring such latchto its normal position after the saw carrying carriage has been moved.

l. In a device of the character described, the combination witha sawcarrying carriage of a file frame disposed substantially transverselywith relation to said carriage, a rotative shaft, means for impartingreciprocatory movement to the file frame from said shaft, verticallymovable guides in which the file frame slides, a member, movement ofwhich serves to impart movement to the saw carrying carriage to bringanother tooth into position to be acted upon by the file, a latchnormally holding said member against such movement, means operableduring the downward movement of the file frame guides to release saidlatch, and means carried by the rotative shaft and contacting with thefile frame guides to elevate the said guides and the file frame duringthe return movement of the file.

5. In a device of the character described, the combination with asupporting head plate of a rotative shaft journaled thereon, avertically movable file frame guide, a file frame mounted in the fileframe guides, means for impart-ing reciprocatory movement to the fileframe from the rotative shaft, an offset portion in said shaft whichcontacts with the file frame guides to elevate the file frame guides andthe file frame during the return movement of the file, a saw carriage, amember, downward move ment of which imparts a forward feeding movementto the saw carriage, a latch normally holding said member againstdownward movement and a projection carried by the file frame guide forreleasing said latch when the file frame has moved downward apredetermined distance, and a crank arm carried by said shaft forrestoring said latch to normal position after the file frame guide hasbeen moved.

6. In a device of the character described, the combination with avertically movable file frame of a saw carrying carriage, guides inwhich said carriage is mounted for longitudinal movement, a platemounted for sliding movement adjacent said carriage, a dog carried bysaid plate and adapted to engage with the teeth of a saw held in saidcarriage, and means actuated by downward movement of the file frame formoving said plate and dog.

7. In a device of the character described, the combination with avertically movable file frame of a saw carrying carriage, guides inwhich said carriage is mounted for longitudinal. movement, a platemounted for sliding movement adjacent said carriage, a dog carried bysaid plate and adapted to engage wit-h the teeth of a saw heldin saidcarriage, means actuated by downward movement of the file frame formoving said plate and dog, said means comprising a vertically movablemember, a latch which normally holds said vertical member againstmovement, a spring actuated rocking-lever, a link connecting therocking-lever with the plate, a bell-crank lever to one arm ofwhich thelower end of the vertically movable member is connected, a linkconnecting the other arm of said bell-crank lever with said rockinglever. g

8. In a device of the character described, the combination with asupporting brackethaving ways formed therein of a saw carrying carriagemounted to travel in said ways, a head block adj ustably mounted to tiltupon said bracket, a head plate horizontally adjustable upon the headblock, file frame guides supported from the head plate, a file framemounted for horizontal reciprocation in the file frame guides, arotative shaft supported upon the head plate, and means for impartingreciprocation to the file frame from said shaft.

9. In a device of the character described, the combination with asupporting bracket 10. In a device of the character described,

the combination with a supporting bracket having ways formed therein ofa saw carrying carriage mounted to travel in said ways, a head blockadjust-ably mounted to tilt upon said bracket, a head plate horizontallyadjustable upon the head block file frame guides, supported from thehead plate, a file frame mounted for horizontal reciprocation in thefile frame guides, a rotative shaft supported upon the head plate, meansfor imparting reciprocation to the file frame from said. shaft, meanscarried by said shaft for elevating the file frame during the reversemovement of the file, and means controllable by the downward movement ofthe file frame guides for imparting movement to the saw carryingcarriage to bring another tooth of the saw into position to be actedupon by the file.

In testimony whereof I affix my signature in presence of two witnesses.

' WVILLIAM H. UPDEGRAFF.

Witnesses:

J. C. HIzAn, G. U. FRY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

